Do not use to detect myocardial injury. Troponin I (0090613) and Troponin T (cTnT) 5th Generation (3001831) are the recommended tests for diagnosis and management of acute coronary syndrome. In rare cases, this test may be used to evaluate elevated lactate dehydrogenase associated with noncardiac muscle injury.
Serum Separator Tube (SST) or Plain Red.
Do not refrigerate or freeze. Allow specimen to clot completely at room temperature. Separate from cells ASAP or within 2 hours of collection. Transfer 1 mL serum to an ARUP Standard Transport Tube. (Min: 0.6 mL)
After separation of cells: Ambient: 1 week; Refrigerated: Unacceptable; Frozen: Unacceptable
Lactate Dehydrogenase, Total:
0-1 month: 200-465 U/L
2-17 months: 200-450 U/L
18 months-10 years: 165-430 U/L
11-16 years: 127-287 U/L
17 years and older: 105-230 U/L
LD-1 and LD-2 are elevated in hemolyzed specimens and serum which has not been separated from cells. LD-3, LD-4, and LD-5 are labile at low temperatures, and are erroneously low in specimens that have been refrigerated or frozen.
|Component Test Code*||Component Chart Name||LOINC|
|0020015||Lactate Dehydrogenase - 1||2536-1|
|0020016||Lactate Dehydrogenase - 2||2539-5|
|0020017||Lactate Dehydrogenase - 3||2542-9|
|0020018||Lactate Dehydrogenase - 4||2545-2|
|0020019||Lactate Dehydrogenase - 5||2548-6|
|0020107||Lactate Dehydrogenase, Total||14804-9|
- Isoenzymes of Lactate Dehydrogenase
- Isoenzymes, LD
- Lactate Dehydrogenase Isoenzymes, S
- LDH Fractionation
- LDH Isoenzymes